National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

36°F

2°C

Humidity 57%
Wind Speed Calm
Barometer 30.00 in (1015.9 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 23 Nov 7:56 am EST
Extended Forecast for

South Dennis MA

  • Today

    Today: Isolated showers after 4pm. Increasing clouds, with a high near 46. Light and variable wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 20%.

    High: 46 °F

    Sunny then
    Isolated
    Showers

  • Tonight

    Tonight: Scattered showers, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 35. Northwest wind 5 to 9 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Scattered
    Showers then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 48. Northwest wind 9 to 14 mph.

    High: 48 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 36. Northwest wind around 7 mph becoming southwest after midnight.

    Low: 36 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy, with a high near 54. Southwest wind 7 to 10 mph.

    High: 54 °F

    Cloudy

  • Tuesday Night

    Tuesday Night: Rain, mainly after 10pm. Low around 44. South wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    Low: 44 °F

    Rain

  • Wednesday

    Wednesday: Rain likely, mainly before 9am. Cloudy, with a high near 56. South wind 8 to 10 mph. Chance of precipitation is 70%.

    High: 56 °F

    Rain Likely
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 2am. Mostly cloudy, with a low around 41. Southwest wind 7 to 9 mph. Chance of precipitation is 40%.

    Low: 41 °F

    Chance Rain

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 52. West wind 10 to 13 mph.

    High: 52 °F

    Mostly Sunny

Detailed Forecast

Today
Isolated showers after 4pm. Increasing clouds, with a high near 46. Light and variable wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 20%.
Tonight
Scattered showers, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 35. Northwest wind 5 to 9 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Sunny, with a high near 48. Northwest wind 9 to 14 mph.
Monday Night
Increasing clouds, with a low around 36. Northwest wind around 7 mph becoming southwest after midnight.
Tuesday
Cloudy, with a high near 54. Southwest wind 7 to 10 mph.
Tuesday Night
Rain, mainly after 10pm. Low around 44. South wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Wednesday
Rain likely, mainly before 9am. Cloudy, with a high near 56. South wind 8 to 10 mph. Chance of precipitation is 70%.
Wednesday Night
A chance of rain before 2am. Mostly cloudy, with a low around 41. Southwest wind 7 to 9 mph. Chance of precipitation is 40%.
Thanksgiving Day
Mostly sunny, with a high near 52. West wind 10 to 13 mph.
Thursday Night
Partly cloudy, with a low around 31. West wind around 11 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 44. West wind 11 to 13 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 29. West wind around 11 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 43. West wind 9 to 11 mph, with gusts as high as 21 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
6:06 am EST Nov 23, 2025
Forecast Valid:
8am EST Nov 23, 2025-6pm EST Nov 29, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation